We can't wait for the infrastructure project [on the Chao Phraya River basin] which is due to be completed in the next decade. However, the rainy season has increased the volume of usable water from 2,265mcm on May 1 to 3,108mcm on Sept 15. "However, there should be at least 8,000mcm of usable water by Nov 1 for off-season rice farming next year. Flooding is likely to occur in the Central Region (the Chao Phraya River basin) and some parts of the Northeast. While the Bangrakam lowland area (upper Chao Phraya River basin) can collect 400mcm, 12 lowland areas (lower Chao Phraya River basin) can hold 1,500mcm.

Source: Bangkok Post September 20, 2021 21:45 UTC